Rangers' hopes of breaking Chelsea's British defensive record suffered a blow with a Hibernian goal that Filip Helander found "hard to take".
But they have now shipped 11 goals in 34 games and have four left to avoid conceding as many as Chelsea in their 2004-5 English championship season.
"We fight to keep that clean sheet and we didn't," centre-half Helander said.
"We are disappointed with that, of course, but when you win, that is obviously most important. Our victory record here at Ibrox is nice.
"Most of the game we did well, but when you concede a goal, you can't be too happy about it.